DE112019004196T5 - Actuator for an electromechanical brake and electromechanical brake - Google Patents

Abstract

Embodiments of the present invention relate to an actuator of an electromechanical brake and an electromechanical brake, which are assigned to the technological field of mechanical braking and represent a solution to problems such as high costs of existing connections between the circuit board and the electromagnetic clutch and complex assembly. The electromagnetic brake actuator according to the invention has the following components: a housing, an electric motor housed in the housing, the electric motor having a motor shaft, an electromagnetic clutch housed in the housing, the electromagnetic clutch being configured is for holding or locking and releasing the motor shaft, a circuit board which is received in the housing, and an electrical connector which is suitably configured for establishing an electrical connection between the electromagnetic clutch and the circuit board. No tools or auxiliary connection techniques are required during the assembly process, reducing assembly time and costs. After the electromagnetic clutch has been fully installed, the electrical connection between the circuit board and the electronic magnetic clutch is established synchronously with the assembly of the circuit board (or vice versa), creating a quick and reliable electrical connection between the electromagnetic clutch and the circuit board.

Description

TECHNICAL FIELD OF THE INVENTION

Embodiments of the present disclosure basically relate to the technological field of mechanical brakes and in particular to an actuator for an electromechanical brake and an electromechanical brake.

STATE OF THE ART

An electromechanical brake (EMB) basically has an actuator and a disc brake. A moment that is generated by the actuator acts on a brake caliper via a mechanical structure, with the result that the brake caliper tightly clamps the brake disc, as a result of which the desired braking force is generated. In contrast to a conventional electro-hydraulic brake (EHB), the EMB is easier to manufacture and assemble. As a result of a fast braking reaction speed and a good control or regulation performance, a linear control or regulation can be implemented in an EMB in a simple manner. When replacing an EMS, the EMB represents a significant improvement over conventional types of braking.

To provide the actuation source for the EMB, the actuator has an electric motor and an electromagnetic clutch for holding or locking and releasing a motor shaft. During a braking process, the electromagnetic clutch releases the motor shaft and the electric motor is rotated in order to generate the braking torque and to cause the brake disc to be braced by the brake caliper. In a held or locked state, the electromagnetic clutch locks or holds the motor shaft, whereby the braking torque is held in order to prevent the motor from falling off. To implement this function, the actuator must be equipped with a circuit board, switch or circuit board (hereinafter referred to as “circuit board”) that can control or regulate an operating state of the electromagnetic clutch. An electrical connection between the circuit board and the electromagnetic clutch is established in order to implement a power transmission between them and to create the possibility of controlling the operating state of the electromagnetic clutch. If the electrical connection between the circuit board and the electromagnetic coupling has a conventional cable or a cable connection, the installation effort increases because the wire or the cable comprises flexible materials, so that its shape is not maintained during installation. When the wire and board are soldered together, the process is time consuming, the solder may skip or be incomplete, and pseudo-soldering can occur which affects the reliability of the electrical connection.

The prior art does not provide an effective solution to the above problems.

OBJECT OF THE INVENTION

The object of the invention is to provide an electrical connection structure between a circuit board and an electromagnetic clutch of an actuator for an electromechanical brake.

SOLUTION

The object of the invention is achieved according to the invention with the features of the independent claim. Further preferred embodiments according to the invention can be found in the dependent claims.

DESCRIPTION OF THE INVENTION

To overcome the disadvantages of the prior art, the present disclosure proposes an actuator for an electromechanical brake and an electromechanical brake, in which an electrical connection structure between a circuit board and an electromagnetic clutch is improved and realized as a quick connection and reliable electrical connection between them is.

• einen Aktuator für eine elektromechanische Bremse mit:
  • - einem Gehäuse,
  • - einem elektrischen Motor, der in dem Gehäuse aufgenommen ist, wobei der elektrische Motor eine Motorwelle aufweist,
  • - einer elektromagnetischen Kupplung, die in dem Gehäuse aufgenommen ist, wobei die elektromechanische Kupplung geeignet konfiguriert ist für ein Festhalten oder Arretieren und Freigeben der Motorwelle,
  • - einer Platine, die in dem Gehäuse aufgenommen ist, und
  • - einem elektrischen Verbinder, der geeignet konfiguriert ist für die Herstellung einer elektrischen Verbindung zwischen der elektromagnetischen Kupplung und der Platine.

To solve the above problem, the present disclosure proposes the following technical solution:

• an actuator for an electromechanical brake with:
  • - a housing,
  • - An electric motor which is received in the housing, the electric motor having a motor shaft,
  • - An electromagnetic clutch, which is received in the housing, wherein the electromechanical clutch is suitably configured for holding or locking and releasing the motor shaft,
  • - A circuit board, which is received in the housing, and
  • an electrical connector suitably configured to establish an electrical connection between the electromagnetic clutch and the circuit board.

In the actuator for an electromechanical brake, the electromagnetic clutch has a rotor that rotates with the motor shaft and a stator that is not rotatable relative to the motor shaft. The electrical connector establishes an electrical connection between the stator and the circuit board.

In the actuator for an electromechanical brake, a fixing plate is also provided, which is arranged in the housing. The stator and the circuit board are mounted with the fixing plate.

In the actuator for an electromechanical brake, a through recess is provided in the fixing plate, through which the electrical connector extends at least partially.

In the actuator for an electromechanical brake, both the fixing plate and the circuit board have a circular ring shape and the motor shaft extends into or through this.

In the actuator for an electromechanical brake, the stator is fixed to the housing.

In the actuator for an electromechanical brake, the electrical connector has a crimp terminal. The crimp terminal is crimped with or on the circuit board to establish the electrical connection.

In the actuator for an electromechanical brake, the crimp terminal is a terminal which has the eye of a needle or a thickening with an eye.

In the actuator for an electromechanical brake, the electrical connector further includes a terminal holding portion provided on the stator.

In the actuator for an electromechanical brake, the electrical connector includes a male connector provided on the board and a female connector provided on the stator, the male connector and the female connector being connected to each other and being engaged with each other and / or match.

In the actuator for an electromechanical brake, the male connector and / or the female connector have electrodes built-in or integrated for protection, the male connector and the female connector being interlocked, connected to each other, or mating to ensure that the electrodes make or maintain electrical contact within the electrical connector.

In the actuator for an electromechanical brake, the male connector and the female connector have a fitting recess and a plug pin, the plug pin being inserted into the fitting recess.

In the actuator for an electromechanical brake, the male connector has a male terminal base, and a male terminal block is provided on the male terminal base. The female connector has a female terminal base and a female terminal block is embedded in the female terminal base. The male terminal base can be inserted into the female terminal base in order to establish electrical contact between the male terminal block and the female terminal block.

The present disclosure further proposes an electromechanical braking device which has the actuator in accordance with the above technical solutions.

• Der Aktuator für eine elektromechanische Bremse entsprechend der vorliegenden Offenbarung weist auf: ein Gehäuse; einen elektrischen Motor, der in dem Gehäuse aufgenommen ist, wobei der elektrische Motor eine Motorwelle aufweist; eine elektromagnetische Kupplung, die in dem Gehäuse aufgenommen ist, wobei die elektromagnetische Kupplung geeignet für ein Festhalten oder Arretieren und Freigeben der Motorwelle gestaltet ist; eine Platine, die in dem Gehäuse aufgenommen ist; und einen elektrischen Verbinder, der geeignet zur Herstellung einer elektrischen Verbindung zwischen der elektromagnetischen Kupplung und der Platine gestaltet ist.

The present disclosure results in the following advantages:

• The actuator for an electromechanical brake according to the present disclosure includes: a housing; an electric motor received in the housing, the electric motor having a motor shaft; an electromagnetic clutch received in the housing, the electromagnetic clutch being configured to hold or lock and release the motor shaft; a circuit board housed in the case; and an electrical connector suitable for making an electrical Connection between the electromagnetic clutch and the board is designed.

According to the present disclosure, by a reasonable structural arrangement, the circuit board can be embedded in the housing of the actuator so that the electric motor, the electromagnetic clutch and the circuit board are housed in the housing, which increases the degree of indication and compactness of the actuator, thereby increasing the Occupancy of space in the vehicle is reduced and the layout of the chassis can be simplified. On the basis of such a solution, the circuit board can be assembled quickly and precisely with the electromagnetic coupling, whereby the space required for the assembly is reduced, so that a more reliable and more effective electrical connection can be established between the electromagnetic coupling and the circuit board .

The electrical connection according to the present disclosure is suitably designed for an implementation of a transmission of power or a signal and for a control or regulation between the electromagnetic clutch and the circuit board. However, in contrast to a wire or cable, the electrical connection can be assembled without tools or auxiliary connection techniques (for example soldering), which reduces the assembly time and costs. After the electromagnetic clutch has been fully installed, the electrical connection between the circuit board and the electromagnetic clutch is established synchronously while the circuit board is being assembled (or vice versa), creating a quick and reliable electrical connection between the electromagnetic clutch and the circuit board. During maintenance, the circuit board and the electromagnetic clutch can be easily dismantled, which reduces the costs for maintenance and replacement of parts.

A fixing plate is also provided in the housing. The stator and the circuit board are then mounted on the fixing plate. By mounting the stator and the board on the fixing plate, the relative positions between the stator and the board can be stably ensured and maintained, which makes it easy to maintain the reliability of the connection of the electrical connector between the stator and the board.

Furthermore, the fixing plate and the circuit board both have a ring shape and the motor shaft passes through them. This simplifies the fixed connection between the motor shaft and the rotor and shortens the assembly path or the assembled distance between the electromagnetic clutch and the motor, with the result that the internal structure of the actuator is more compact and a miniaturized design of the actuator is simplified or enabled .

Furthermore, the stator is fixed to the housing. By fixing the stator to the housing of the actuator, the circuit board establishes an electrical connection with the stator through the electrical connector, which enables a different actuator layout.

The electrical connector also has a crimp terminal. The crimp terminal is crimped on or with the circuit board to establish the electrical connection. This enables simple assembly, and the electrical connection between the circuit board and the electromagnetic coupling can be implemented with a soldering process. This enables simple interchangeability and a damaged crimp terminal can be removed directly from the electromagnetic coupling and exchanged for a new crimp terminal. Furthermore, the electrical connector has a terminal holding portion provided on the stator. The terminal holding area cooperates directly with the crimp terminal to increase the strength of the crimp terminal and to reduce the risk of bending or breaking the crimp terminal during crimping.

Furthermore, the electrical connector includes a male connector provided on the board and a female connector provided on the stator. The male connector and the female connector are designed to mate with one another or as a mating connection, are connected to one another or engage with one another. The male connector and the female connector are formed as a mating pair or as a fit, so that the connection reliability between them is not substantially impaired by the inherent structures of the electromagnetic clutch and the circuit board.

Furthermore, the male connector and / or the female connector have electrodes which are built in or integrated in order to ensure a protective effect. The male connector and the female connector are mated, mated, connected, or interlocked to cause the electrodes to make and / or maintain electrical contact within the electrical connector. When the male connector and the female connector are connected to each other, the electrodes are sealed inside, which ensures a good protective effect for the electrodes, thus avoiding a bad connection due to interference from the external environment.

Furthermore, the male connector and the female connector have a matching recess or fitting recess and a plug pin. The plug pin is inserted into the matching recess or fitting recess. During assembly, a user can monitor the relative positions of the matching recess or fitting recess and the plug pin and align them with one another for the connection or the appropriate engagement, thus reducing the assembly difficulty. After the assembly is completed, the connector pin is not freely accessible, which ensures good protection for the connector pin.

Furthermore, the male connector has a male terminal base and a male terminal block that attaches to the male Terminal base is provided on. The female connector has a female terminal base and a female terminal block embedded in the female terminal base. To establish the electrical contact between the male terminal block and the female terminal block, the male terminal base is inserted into the female terminal base. The male terminal base and the female terminal base are suitably designed for engagement with one another, for a connection with one another, a formation of a fitting connection or with one another, which reduces the difficulty of dismantling the electromagnetic coupling of the circuit board. The male terminal block and the female terminal block are suitably designed for a matching configuration to one another, a formation of a fitting connection or an engagement with one another or a connection with one another, so that the electrical connection established between them can fulfill a variety of functions such as, for example Power transmission, signal transmission, grounding, etc.

Advantageous further developments of the invention emerge from the patent claims, the description and the drawings.

The advantages of features and of combinations of several features mentioned in the description are merely exemplary and can come into effect alternatively or cumulatively without the advantages necessarily having to be achieved by embodiments according to the invention.

With regard to the disclosure content - not the scope of protection - of the original application documents and the patent, the following applies: Further features can be found in the drawings - in particular the illustrated geometries and the relative dimensions of several components to one another and their relative arrangement and operative connection. The combination of features of different embodiments of the invention or of features of different patent claims is also possible in a way deviating from the selected back-references of the patent claims and is hereby suggested. This also applies to features that are shown in separate drawings or mentioned in their description. These features can also be combined with features of different patent claims. Features listed in the claims can also be omitted for further embodiments of the invention, but this does not apply to the independent claims of the granted patent.

The number of features mentioned in the claims and the description are to be understood in such a way that precisely this number or a greater number than the number mentioned is present without the explicit use of the adverb “at least” being required. For example, when an element is mentioned, it is to be understood that there is exactly one element, two elements or more elements. These characteristics can be supplemented by other characteristics or be the only characteristics that make up the product in question.

The reference signs contained in the claims do not restrict the scope of the subject matter protected by the claims. They only serve the purpose of making the claims easier to understand.

Figure list

• 1 zeigt für eine erste Ausführungsform der vorliegenden Offenbarung ein schematisches Diagramm einer inneren Struktur eines Aktuators.
• 2 zeigt lokale Explosionsdarstellungen einer elektromagnetischen Kupplung und einer Platine gemäß der ersten Ausführungsform der vorliegenden Offenbarung.
• 3 zeigt ein schematisches Diagramm für ein Vercrimpen eines Crimp-Terminals und der Platine gemäß der ersten Ausführungsform der vorliegenden Offenbarung.
• 4 zeigt ein schematisches Diagramm einer inneren Struktur eines Aktuators gemäß einer zweiten Ausführungsform der vorliegenden Offenbarung.
• 5 zeigt lokale Explosionsdarstellungen einer elektromagnetischen Kupplung und einer Platine gemäß der zweiten Ausführungsform der vorliegenden Offenbarung.
• 6 zeigt ein schematisches Diagramm eines Verbindens eines männlichen Verbinders und eines weiblichen Verbinders gemäß der zweiten Ausführungsform der vorliegenden Offenbarung.
• 7 zeigt ein schematisches Diagramm für eine Verbindung eines männlichen Verbinders und eines weiblichen Verbinders gemäß einer dritten Ausführungsform der vorliegenden Offenbarung.
• 8 zeigt ein schematisches Diagramm für eine Verbindung eines männlichen Verbinders und eines weiblichen Verbinders gemäß einer vierten Ausführungsform der vorliegenden Erfindung.
• 9 zeigt ein schematisches Diagramm für eine Montage einer elektromagnetischen Kupplung und einer Platine gemäß einer fünften Ausführungsform der vorliegenden Offenbarung.
• 10 zeigt ein schematisches Diagramm für eine Montage einer elektromagnetischen Kupplung und einer Platine gemäß einer sechsten Ausführungsform der vorliegenden Offenbarung.

In the following, the invention is further explained and described with reference to preferred exemplary embodiments shown in the figures.

• 1 For a first embodiment of the present disclosure, FIG. 13 shows a schematic diagram of an internal structure of an actuator.
• 2 FIG. 12 shows exploded local views of an electromagnetic clutch and a circuit board according to the first embodiment of the present disclosure.
• 3rd FIG. 13 is a schematic diagram for crimping a crimp terminal and the board according to the first embodiment of the present disclosure.
• 4th FIG. 12 is a schematic diagram of an internal structure of an actuator according to a second embodiment of the present disclosure.
• 5 FIG. 12 shows exploded local views of an electromagnetic clutch and a circuit board according to the second embodiment of the present disclosure.
• 6th FIG. 12 is a schematic diagram of connecting a male connector and a female connector according to the second embodiment of the present disclosure.
• 7th FIG. 12 shows a schematic diagram for connection of a male connector and a female connector according to a third embodiment of the present disclosure.
• 8th FIG. 13 shows a schematic diagram for a connection of a male connector and a female connector according to FIG fourth embodiment of the present invention.
• 9 FIG. 10 shows a schematic diagram for assembling an electromagnetic clutch and a circuit board according to a fifth embodiment of the present disclosure.
• 10 FIG. 12 is a schematic diagram for assembling an electromagnetic clutch and a circuit board according to a sixth embodiment of the present disclosure.

FIGURE DESCRIPTION

The actuator for an electromagnetic brake according to the present disclosure includes: a housing; an electric motor received in the housing, the electric motor having a motor shaft; an electromagnetic clutch received in the housing, the electromagnetic clutch being suitably configured to hold or lock and release the motor shaft; a circuit board housed in the case; and an electrical connector configured to make an electrical connection between the electromagnetic clutch and the circuit board. According to the present disclosure, the circuit board is embedded in the housing of the actuator by a reasonable structural arrangement such that the electric motor, the electromagnetic clutch, and the circuit board are housed in the housing, which increases the degree of integration and compactness of the actuator. This reduces the space taken up in the vehicle and simplifies the layout of the chassis. On the basis of such a solution, the circuit board can be quickly and precisely adapted to the electromagnetic clutch or assembled with it, whereby the space required for assembly can be reduced, so that a more reliable and effective electrical connection between the electromagnetic clutch and the circuit board can be manufactured. The electrical connector according to the present disclosure is provided for ensuring a transmission of power or a signal and for a control or regulation between the electromagnetic clutch and the circuit board. However, in contrast to the use of a wire or a cable, the electrical connection can be assembled without tools or auxiliary connection techniques (for example a soldered connection), which reduces the assembly time and costs. After the electromagnetic clutch is fully installed, during the assembly of the board the electrical connection between the board and the electromagnetic clutch is made synchronously, or, if the board is installed first, a quick and reliable electrical connection between the electromagnetic clutch and the Circuit board are brought about when the electromagnetic clutch is attached. During maintenance or repair, the circuit board and the electromagnetic coupling can be simply dismantled, which reduces the degree of difficulty in maintenance or repair and for the replacement of parts.

In the following, the technical solutions according to embodiments of the present disclosure are explained and illustrated with reference to the accompanying drawings, which correspond to the embodiments of the present disclosure. However, the embodiments merely represent examples of the present disclosure without these being intended to be exhaustive. Other embodiments result for the person skilled in the art without inventive activity on the basis of the exemplary embodiments. All of these fall within the scope of the present invention.

In the description of the present invention, information on orientation or positions through the use of terms such as "central" or "centered", "longitudinal" or "longitudinal ...", "transversal", "length", "width", "Thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "in." Clockwise ”,“ counterclockwise ”etc. Information based on the drawings, which are only intended to simplify or enable the description of the present invention, without this implying or indicating that the devices or elements must necessarily have these specific orientations and must be configured and operated with these specific orientations. Therefore, this information should not be understood in a restrictive manner.

The terms “first” and “second” are only used for the purpose of description, without these being understood to have a meaning or to implicitly indicate the number of technical features indexed in this way. Therefore, features delimited by “first” and “second” can explicitly or implicitly have one or more features. In the description of the present invention, “a plurality” indicates two or more (unless otherwise indicated).

In the present disclosure, the terms such as “assembly”, “connected”, “connection” and “attached” (unless explicitly described otherwise) are to be interpreted broadly, so that hereby for example a secured connection, a detachable connection or a integrated connection can be referenced, being there can be a mechanical connection or an electrical connection, a direct connection or a direct connection via an intermediate medium, a communication between inner sides of two elements and the like. Specific meanings of the above features in the present disclosure are for the Experts understandable on the basis of the specific situations.

In the present disclosure (unless explicitly stated otherwise) a first feature which is arranged “above” or “below” a second feature can mean a direct contact between the first feature and the second feature or include the case that although the first feature and the second feature are not in direct contact with one another, they are in contact with one another via another interposed feature. Furthermore, the wording that the first feature is “above” or “on” the second feature includes a case in which the first feature is arranged exactly or basically above the second feature or it is only indicated that the horizontal height of the first feature is greater than that of the second feature. The fact that the first feature is arranged “below” or “below” the second feature includes a case in which the first feature is arranged exactly or basically below the second feature, or this merely indicates that the horizontal height of the first feature is lower than that of the second feature.

Embodiment I.

According to 1 and 2 an actuator of an electromechanical brake according to a first embodiment of the disclosure comprises: a housing 100 ; an electric motor 310 that is in the case 100 is added, the electric motor 310 a motor shaft 400 having; an electromagnetic clutch 610 that are in the housing 100 is added, the electromagnetic clutch 610 is suitably configured to hold or lock or release the motor shaft 400 ; a circuit board 700 that are in the housing 100 is included; and an electrical connector 900 which is suitably designed for establishing an electrical connection between the electromagnetic clutch 610 and the board 700 . In particular, the electric motor 310 a motor shaft 400 , a motor stator 300 and a motor rotor 200 on. The motor rotor 200 is fixed to the motor shaft 400 connected. When the motor rotor 200 relative to the motor stator 300 is rotated, the motor shaft is synchronized 400 driven for rotation, whereby a braking torque is output. Although this embodiment shows an inner motor rotor, the present disclosure is not limited thereto. Any type of motor that electrically drives the motor shaft to output a torque can be used for the actuator motor. The electromagnetic clutch 610 has a rotor 600 and a stator 500 on. The rotor 600 is fixed to the motor shaft 400 connected (if the rotor 600 Fixed to the motor shaft by means of a screw or any other means, for example a spline shaft or feather key, welding, etc. 400 connected is). The stator 500 is fixed and cannot be rotated in relation to the motor shaft 400 arranged. In particular, the stator 500 the electromagnetic clutch 610 an electromagnet (e.g., an electromagnetic coil, etc.) and a permanent magnet. While the braking process is being carried out, the electromagnet is energized to generate a magnetic field. When the magnetic field of the electromagnet is weakened by the permanent magnet or the magnetic field of the permanent magnet counteracts such that the permanent magnet becomes a friction plate of the rotor 600 cannot tighten, the rotor rotates 600 with the motor shaft 400 . This means that the electromagnetic clutch 610 the motor shaft 400 releases and thus the electric motor 310 can output a braking torque, which leads to the fact that the brake caliper clamps the brake disc. In a holding or locked state, the electromagnet is not energized. The permanent magnet pulls the rotor's friction plate 600 to limit the rotational movement of the rotor as a result of a frictional force acting in between. Because the rotor 600 and the motor shaft 400 are firmly connected to each other, ie the motor shaft 400 if locked, deactivated or braked, braking force is maintained without consuming electrical power.

In the actuator according to this embodiment, the electrical connector is 900 a crimp terminal 910 . One end of the crimp terminal 910 is with the electromagnet of the stator 500 connected. The other end of the crimp terminal 910 is with the board 700 crimped, which has the consequence that an electrical connection between the electromagnet and the circuit board 700 is established, ie an electrical connection between the electromagnetic clutch 610 and the board 700 will be produced. This type of electrical connection enables simple assembly and the electrical connection between the circuit board 700 and the electromagnetic clutch 610 can be created without a soldering process. This enables easy interchangeability and a damaged crimp terminal 910 can directly from the electromagnetic clutch 610 removed and replaced with a new crimp terminal 910 be replaced.

According to 3rd is the crimp terminal 910 According to the present embodiment, a terminal with an eye of a needle or a thickening with an eye (“eye of needle”, “EON” for short). The terminal basically has a base 912 , a run-out area or a prong 914 and a deformed portion 913 between the base 912 and the lead-out area or the prong 914 on. In the deformed section 913 is an eye of a needle or an eye of a thickened area 915 intended. The base 912 is with the electromagnet of the stator 500 connected. During assembly, the run-out area or prongs lead 914 the terminal to be used in an electrically conductive recess 710 the board 700 . The deformed area 913 can be deformed while compressing the same, so that the deformed area 913 into the electrically conductive recess 710 can occur and a close contact with the electrically conductive recess 710 can form, creating an electrical connection between the terminal and the circuit board 700 is created. In this way, a high clamping force can be achieved with only a very small compression force. Assembly is convenient without the need for welding or soldering. In addition, removability is guaranteed, so that the terminal has an electrically conductive recess 710 the board 700 can match with a small opening or can form a fitting connection.

In the actuator according to the present embodiment, the electrical connector has 900 on the stator 500 also a terminal holding area 911 on. The terminal holding area 911 acts directly on the crimp terminal 910 , which has been described above, one for increasing the rigidity of the crimp terminal 910 and to reduce the possibility of bending or breaking the crimp terminal during crimping. The terminal holding area 911 acts on a root area of the crimp terminal 910 (for example a base 912 of the terminal), which increases the strength of the crimp terminal 910 can be better sustained. The terminal holding area 911 may be selected or made of an insulating jacket of a resin material (for example) that constitutes the crimp terminal 910 Sheathed like a sleeve, which plays a role in the electrical insulation while increasing the strength of the crimp terminal 910 , whereby increased security can be guaranteed.

In the actuator according to the present invention is further in the housing 100 of the actuator a fixing plate 800 intended. The fixing plate 800 is on the housing 100 attached to realize a fixation. The stator 500 and the board 700 are both on the fixing plate 800 assembled. For example, the stator 500 and the patina 700 on opposite sides on the fixing plate 800 assembled. The fixing plate 800 has a through recess 810 of the crimp terminal 910 to plug in. During assembly, the crimp terminal 910 through the passage recess 810 for a connection in the electrically conductive recess of the board 700 introduced. After completing the assembly, the relative positions between the stator 500 and the board 700 (if the fixing plate provides support 800 ) are stably maintained, thereby maintaining the connection reliability of the electrical connector 900 between the stator 500 and the board 700 simplified, ie an exit of the crimp terminal 910 from the electrically conductive recess in the board 700 due to external forces is avoided.

In the actuator according to the present embodiment, there is due to the stator 500 and the fixing plate 800 the board 700 spaced from the rotor 600 the electromagnetic clutch 610 arranged. To implement the connection between the motor shaft 400 and the rotor 600 have the fixing plate 800 and the board 700 both have a ring shape. The fixing plate 800 and the board 700 are both equipped with a recess through which the motor shaft 400 extends. A stator recess 510 is in the middle of the stator 500 intended. The motor shaft 400 occurs for a firm connection with the rotor 600 the electromagnetic clutch 610 through the recess in the board 700 , the recess of the fixing plate 800 and the stator recess 510 through. This design can reduce the assembly route between the electromagnetic clutch 610 and the electric motor 310 shorten, with the result that the internal structure of the actuator is more compact and a miniaturized design of the actuator is made possible.

The board 700 According to this embodiment, it is usually designed as a “printed circuit board”, for example “hard PCB board” or FPC board with a certain flexibility. An electrical connection between the board 700 and the stator 500 the electromagnetic clutch 610 is used to transfer power to the stator 500 or the control or regulation of the stator 500 . The board 700 can also provide an electrical connection to the engine 310 train, whereby this can serve as a control unit for the entire brake caliper to implement the entire control or regulation of the engine 310 and the electromagnetic clutch 610 .

Embodiment II

According to 4th and 5 This embodiment differs from the first embodiment as follows: the electrical connector 900 shows a male connector 920 that is on the board 700 and a female connector 930 that is attached to the stator 500 is provided on. The male connector and the female connector are formed to mate with one another, form a mating connection, are connected to one another, or interlock with one another. In particular, in the electrical connector 900 the male connector 920 and the female connector 930 designed as a matching pair to be connected or engaged. Here is the male connector 920 on the board 700 mounted, and the female connector 930 is on the stator 500 assembled. When assembling the male connector 920 and the female connector 930 connected to one another, these form a fitting connection or they interlock to produce an electrical connection between the electromagnetic clutch 610 and the board 700 . As the male connector 920 and the female connector 930 are suitably designed to be connected to one another, to form a mating connection, or to engage with one another, the reliability of the connection between them is not made essential by the inherent structures of the electromagnetic clutch 610 and the board 700 impaired.

For the embodiment according to 6th are the male connector 920 and / or the female connector 930 matched as follows: the male connector 920 has a built-in or integrated male electrode 921 . The female connector 930 has a built-in or built-in female electrode 931 on. The female electrode 931 has a sleeve-like structure. The male connector 920 and the female connector 930 are connected to one another, engage with one another, form a fitting connection or are adapted to one another. The male electrode 921 is inserted into the female electrode 31 to establish or maintain electrical contact between these similarly known waterproof plug connections. After connecting the male connector 920 with the female connector 930 the electrodes are sealed inside, which ensures good protection of the electrodes and avoids exposure of the electrodes which would otherwise be impaired by the external environment, for example as a result of oxidation with a poor connection caused thereby.

For an equivalent modification of the present embodiment, the male connector has an external male electrode, while the female connector has a built-in or integrated female electrode. The male electrode is then inserted into the female electrode to establish or maintain electrical contact. It is also possible that the male connector has a built-in or integrated male electrode and the female connector has an external female electrode, the male electrode then being inserted into the female electrode to establish or maintain electrical contact between them, with the same effect as for the present embodiment can be achieved and this solution should also be included in the scope of the present invention.

In addition to the board 700 acting as a control unit for the electromagnetic clutch 610 is used, there is also an extended circuit board for this exemplary embodiment 720 electrically with the electric motor 310 connected, which serves as a control unit for the electric motor and which is connected to the circuit board 700 must be connected, so that together they ensure control of the entire brake caliper. The extended board 720 and the board 700 can be on different sides of the fixing plate 800 be arranged and be fixed by means of a conventional fixation, for example by screws, with sufficient use of a space in the area of the surface of the fixing plate.

Embodiment III

The embodiment according to 7th differs from the first embodiment in that the male connector and the female connector have a fitting recess and a plug pin, ie the male connector 920 is with a male pin 920 equipped and the female connector 930 is with a pass recess 932 (For example, a fitting recess of the wedge-groove type, a spring wire fitting recess, a crown spring fitting recess (a fitting recess in which elastic tongue contacts are embedded), etc., where the connector pin 922 into the pass recess 932 is used. During assembly, a user can determine the relative positions of the fitting recess 932 and the connector pin 922 monitor and align them for the connection, which simplifies assembly. After completing the assembly, the connector pin is 922 not freely accessible, which means that the connector pin is well protected 922 is guaranteed. For an equivalent modification of this embodiment, the male connector is provided with a fitting recess and the female connector has a male pin, whereby the same effect as in the present embodiment can be obtained.

Embodiment IV

The embodiment according to 8th differs from the first embodiment as follows: the male connector has a male terminal base 923 on and at the male terminal base 923 a male terminal block is provided. The female connector has a female terminal base 933 up and a female terminal block is in the female terminal base 933 embedded. The male terminal base 923 will be in the female terminal base 933 used to establish electrical contact between the male terminal block and the female terminal block. In particular, the male terminal block has several male contact plates 924 on, on one side surface of the male terminal base 923 are provided. The female terminal base 933 is with a matching connector 934 or pass connector fitted to the male terminal base 923 matches, can be connected to or can intervene in this. The male terminal block has several female contact plates 935 on that inside the passport port 934 are provided. The male terminal base 923 is in the pass port 934 the female terminal base 933 used. The multiple male contact plates 924 and the plurality of female contact sheets 935 ensure electrical contact or maintain electrical contact in a one-to-one correspondence. Such types of electrical connection can ensure a variety of functions such as power transmission, signal transmission, grounding, etc. In an equivalent modification of this embodiment, the male terminal base is equipped with a mating connector which corresponds to and connected to the female terminal base can be or intervenes in this. The female terminal base is inserted into the mating connector of the male terminal base to ensure electrical contact between the female terminal block and the male terminal block, whereby the same effect as in the present embodiment can be brought about.

Embodiment V

In the embodiment according to 9 are the board 700 and the stator 500 both on the same side of the fixing plate 800 assembled. A through recess for the electrical connector 900 does not have to be attached to the fixing plate in this case 800 be kept free. The fixing plate 800 and the board 700 both have a ring shape. The board 700 surrounds the stator 500 and the board 700 and the stator 500 partially overlap in the axial direction of the motor shaft 400 . The overlapping parts are electrical via the electrical connector 900 connected with each other. The motor shaft 700 is (behind its extension through the fixing plate 800 and the stator 500 ) with the rotor 600 the electromagnetic clutch 610 connected. This design can reduce the assembly route between the electromagnetic clutch 610 and the board 700 reduce, whereby the transmission path for the electricity or the signal can be shortened and a miniaturized design of the actuator is simplified or enabled. A specific implementation of the electrical connector 900 according to this exemplary embodiment can correspond to any of the aforementioned exemplary embodiments.

Embodiment VI

The embodiment according to 10 differs from the previous exemplary embodiments as follows: the stator 500 the electromagnetic clutch 610 is directly on the housing 100 fixed. The rotor 600 the electromagnetic clutch 610 is between the stator 500 and the board 700 arranged. To simplify the electrical connection between the stator 500 and the board 700 show the stator 500 and the board 700 a radial size larger than that of the rotor 600 . The stator 500 and an outer perimeter of the board 700 are electrical via the electrical connector 900 connected to one another according to one of the preceding exemplary embodiments. The board 700 has an annular structure. One end of the motor shaft 400 is (behind the extension of the motor shaft 400 through the board 700 ) firmly to the rotor 600 connected. For this embodiment, the stator is 500 on the housing 100 of the actuator fixed. The board 700 can by means of the electrical connector 900 an electrical connection with the stator 500 produce, which suggests another possible layout of the actuator.

Embodiment VII

An electromechanical braking device according to the present exemplary embodiment has the actuator according to one of the technical solutions described above and a brake caliper which is actuated directly or indirectly by the actuator. The brake can be a disc brake. The electromechanical brake can also have a transmission. The actuator drives the motor shaft using electrical input power to produce output torque. The actuator drives the brake caliper via the gearbox and presses the brake pads in the direction of the brake disc in order to generate a braking force. The transmission can have a reduction gear, a planetary reduction gear, a reducing worm gear, a cycloid gear, etc., which reduces the rotational speed and increases the torque with an appropriately selected reduction ratio. It can be seen that the present disclosure can be used not only for a disc brake but also for a drum brake in order to provide a source of the driving force for the brake shoes.

The above description relates only to exemplary embodiments of the present disclosure, and the scope of protection of the present invention is not intended to be limited to this disclosure and exemplary embodiments. It is evident to a person skilled in the art that the present invention includes the content described in the drawings and the exemplary embodiments, but is not limited thereto. Any modifications that do not depart from the functions and structural principles of the present disclosure are intended to be included within the scope of the claims.

List of reference symbols

100

casing

200

Motor rotor

300

Motor stator

310

engine

400

Motor shaft

500

stator

510

Stator recess

600

rotor

610

electromagnetic clutch

700

circuit board

710

electrically conductive recess

720

extended board

800

Fixing plate

810

Passage recess

900

electrical connector

910

Crimp terminal

911

Terminal holding area

912

Base

913

deformed area

914

above area

915

Eye of a needle; extended area with eye

920

male connector

921

male electrode

922

Connector pin

923

male terminal base

924

male terminal block (contact plates)

930

female connector

931

female electrode

932

Pass recess

933

female terminal base

934

Passport connection

935

female terminal block (contact plates)

Claims (14)

Actuator for an electromechanical brake with a housing (100), an electric motor (310) received in the housing (100), the electric motor (310) having a motor shaft (400), an electromagnetic clutch (610), which is received in the housing (100), wherein the electromagnetic clutch (610) is designed suitable for holding or locking and releasing the motor shaft (400), a circuit board (700) received in the housing (100), and an electrical connector (900) configured to provide an electrical connection between the electromagnetic clutch (610) and the circuit board (700). Actuator for an electromechanical brake according to Claim 1 , characterized in that the electromagnetic clutch (610) has a rotor (600) that rotates with the motor shaft (400), and a stator (500) that cannot rotate relative to the housing (100), the electrical Connector (900) establishes an electrical connection between the stator (500) and the circuit board (700). Actuator for an electromechanical brake according to Claim 2 , characterized in that a fixing plate (800) is present in the housing (100), the stator (500) and the circuit board (700) being mounted on the fixing plate (800). Actuator for an electromechanical brake according to Claim 3 , characterized in that the fixing plate (800) has a through recess (810) through or into which the electrical connector (900) extends. Actuator for an electromechanical brake according to Claim 3 , characterized in that the fixing plate (800) and the circuit board (700) both have an annular shape and the motor shaft (400) extends through or into them. Actuator for an electromechanical brake according to Claim 2 , characterized in that the stator (500) is fixed to the housing (100). Actuator for an electromechanical brake according to one of the Claims 1 to 6th , characterized in that the electrical connector (900) has a crimp terminal (910), the crimp terminal (910) being crimped to produce the electrical connection with the circuit board (700). Actuator for an electromechanical brake according to Claim 7 , characterized in that the crimp terminal (910) is a terminal with a needle eye (915) or an extension with an eye. Actuator for an electromechanical brake according to Claim 7 characterized in that the electrical connector (900) further comprises a terminal holding portion (911) provided on the stator (500). Actuator for an electromechanical brake according to one of the Claims 1 to 6th , characterized in that the electrical connector (900) comprises a male connector (920) provided on the circuit board (700) and a female connector (930) provided on the stator (500), the male connector (920) and female connector (930) mate, interlock, or connect to one another. Actuator for an electromechanical brake according to Claim 10 , characterized in that the male connector (920) and / or the female connector (930) have electrodes (921, 931) built in or embedded for protection, and the male connector (920) and the female connector (930) connected, interlocked, or matched such that the electrodes (921, 931) establish and / or maintain electrical contact within the electrical connector (900). Actuator for an electromechanical brake according to Claim 10 , characterized in that the male connector (920) and the female connector (930) have a fitting recess (932) and a plug pin (922), the plug pin (922) in the fitting recess (932 ) is used. Actuator for an electromechanical brake according to Claim 10 characterized in that the male connector (920) has a male terminal base (923) and a male terminal block (924) is provided on the male terminal base (923) and the female connector (930) has a female terminal -Base (933) and a female terminal block (935) is embedded in the female terminal base (933), wherein the male terminal base (923) is inserted into the female terminal base (933) to bring about a electrical contact between the male terminal block (924) and the female terminal block (935). Electromechanical braking device with the actuator according to one of the Claims 1 to 13th .

Images